<template>
  <view v-if="goods_info.goods_name" class="goods-detail-container">
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in goods_info.pics" :key="i">
        <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>
    </swiper>
    <!-- 商品信息区域 -->
    <view class="goods-info-box">
      <!-- 商品价格 -->
      <view class="price">￥{{goods_info.goods_price}}</view>
      <!-- 商品信息主题区域 -->
      <view class="goods-info-body">
        <!-- 商品的名字 -->
        <view class="goods-name">{{goods_info.goods_name}}</view>
        <!-- 收藏 -->
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <!-- 运费 -->
      <view class="yf">快递：免运费</view>
    </view>
    <!-- 商品详情 -->
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    <!-- 商品导航区域组件 -->
    <view class="goods_nav">
      <uni-goods-nav :fill="true" :options="options" :button-group="buttonGroup" @click="onClick" @buttonClick="buttonClick"/>
    </view>
  </view>
</template>

<script>
  import {mapState,mapMutations,mapGetters} from 'vuex'
  export default {
    data() {
      return {
        // 商品详情数据
        goods_info:{},
         options: [{
              icon: 'shop',
              text: '店铺',
              infoBackgroundColor:'#007aff',
              infoColor:"red"
            }, {
              icon: 'cart',
              text: '购物车',
              info: 0
            }],
              buttonGroup: [{
                text: '加入购物车',
                backgroundColor: '#ff0000',
                color: '#fff'
              },
              {
                text: '立即购买',
                backgroundColor: '#ffa200',
                color: '#fff'
              }
              ]
      };
    },
    computed:{
      // ...mapState('m_cart',['cart'])
      ...mapGetters('m_cart',['total'])
    },
    watch:{
      total:{
        immediate:true,
        handler(newVal){
          const findResult = this.options.find(x=>x.text==='购物车')
          if(findResult){
            findResult.info=newVal
          }
        }
      }
      // total(newVal){
      //   const findResult = this.options.find(x=>x.text==='购物车')
      //   if(findResult){
      //     findResult.info=newVal
      //   }
      // }
    },
    onLoad(options){
      console.log(options)
      const goods_id = options.goods_id
      this.getGoodsDetail(goods_id)
    },
    methods:{
      async getGoodsDetail(goods_id){
        const {data:res}= await uni.$http.get('/api/public/v1/goods/detail',{goods_id:goods_id})
        if(res.meta.status!==200) return uni.$showMsg()
        res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g,'<img style="display:block;"').replace(/webp/g,'jpg')
        this.goods_info = res.message
      },
      // 实现轮播图预览
      preview(i){
        uni.previewImage({
          current:i,
          urls:this.goods_info.pics.map(x=>x.pics_big)
        })
      },
      onClick(e){
        console.log(e)
        if(e.content.text==='购物车'){
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      buttonClick(e){
        // console.log(e)
        if(e.content.text==='加入购物车'){
          // 组织商品的信息对象
          // { goods_id, goods_name, goods_price, goods_count, goods_small_logo, goods_state }
          const goods ={
            goods_id:this.goods_info.goods_id, 
            goods_name:this.goods_info.goods_name, 
            goods_price:this.goods_info.goods_price, 
            goods_count:1, 
            goods_small_logo:this.goods_info.goods_small_logo, 
            goods_state:true
          }
          // 调用addToCart方法
          this.addToCart(goods)
        }
      },
      ...mapMutations('m_cart',['addToCart'])
    }
  }
</script>

<style lang="scss">
  .goods-detail-container{
    padding-bottom:50px;
  }
swiper{
  height:750rpx;
  image{
    width:100%;
    height:100%;
  }
}
.goods-info-box{
  background-color: white;
  padding:10px;
  padding-right:0;
  .price{
    color:#c00000;
    font-size: 18px;
    margin:10px 0px;
  }
  .goods-info-body{
    display: flex;
    justify-content: space-between;
    .goods-name{
      font-size: 13px;
      margin-right:10px;
    }
    .favi{
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      border-left:1px solid #efefef;
      width:120px;
      font-size: 12px;
      color:gray;
    }
  }
  .yf{
    font-size: 12px;
    color:gray;
    margin:10px 0;
  }
}
.goods_nav{
  position: fixed;
  bottom:0;
  left:0;
  width:100%;
}
</style>
